Annual report pursuant to Section 13 and 15(d)

Note 18 - Major Customers and Segment Information - Summary of Reportable Segments (Details)

v3.19.1
Note 18 - Major Customers and Segment Information - Summary of Reportable Segments (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Operating Revenues $ 51,721 $ 60,701 $ 70,255 $ 70,932 $ 34,304 $ 42,323 $ 47,813 $ 49,343 $ 253,609 $ 173,783 $ 215,636
Direct Costs and Expenses                 175,091 146,651 149,348
Direct Vessel Profit                 78,518 27,132 66,288
Administrative and general                 52,813 56,217 49,308
Depreciation and amortization                 72,246 62,779 58,069
                136,534 131,944 124,954
Losses on Asset Dispositions and Impairments, Net                 (8,747) (23,547) (116,222)
Operating Loss (24,414) $ (21,002) $ (10,158) $ (11,189) (18,585) $ (44,815) $ (29,129) $ (35,830) (66,763) (128,359) (174,888)
Historical cost 1,242,733 [1]       1,179,836 [1]       1,242,733 [1] 1,179,836 [1] 958,759
Accumulated depreciation (561,272)       (560,160)       (561,272) (560,160) (540,619)
Net book value 681,461       619,676       681,461 619,676 418,140
Total Assets(1) 949,784 [2]       839,158 [3]       949,784 [2] 839,158 [3] 992,692 [4]
Leased-in Equipment [Member]                      
Operating expenses                 11,475 12,948 17,577
Time Charter [Member]                      
Operating Revenues                 222,252 160,545 186,327
Bareboat Charter [Member]                      
Operating Revenues                 4,635 4,636 8,833
Other Direct Costs and Expenses [Member]                      
Operating Revenues                 26,722 8,602 20,476
Direct Costs and Expenses                 11,148 9,905 7,331
Personnel [Member]                      
Direct Costs and Expenses                 95,028 81,500 95,144
Repairs and Maintenance [Member]                      
Direct Costs and Expenses                 33,279 27,655 21,282
Drydocking [Member]                      
Direct Costs and Expenses                 11,587 9,035 7,821
Insurance and Loss Reserves [Member]                      
Direct Costs and Expenses                 7,074 6,524 5,682
Fuel, Lubes and Supplies [Member]                      
Direct Costs and Expenses                 16,975 12,032 12,088
UNITED STATES                      
Operating Revenues                 53,564 22,296 32,856
Direct Costs and Expenses                 32,700 26,063 30,280
Direct Vessel Profit                 20,864 (3,767) 2,576
Administrative and general                
Depreciation and amortization                 23,227 22,060 27,052
Historical cost 432,336       410,475       432,336 410,475 404,226
Accumulated depreciation (224,737)       (230,636)       (224,737) (230,636) (233,075)
Net book value 207,599       179,839       207,599 179,839 171,151
Total Assets(1) 351,748 [2]       310,675 [3]       351,748 [2] 310,675 [3] 325,190 [4]
UNITED STATES | Leased-in Equipment [Member]                      
Operating expenses                 7,420 8,152 7,975
UNITED STATES | Time Charter [Member]                      
Operating Revenues                 38,802 18,079 28,902
UNITED STATES | Bareboat Charter [Member]                      
Operating Revenues                
UNITED STATES | Other Direct Costs and Expenses [Member]                      
Operating Revenues                 14,762 4,217 3,954
Direct Costs and Expenses                 393 249 271
UNITED STATES | Personnel [Member]                      
Direct Costs and Expenses                 18,708 15,621 22,305
UNITED STATES | Repairs and Maintenance [Member]                      
Direct Costs and Expenses                 5,152 3,594 2,721
UNITED STATES | Drydocking [Member]                      
Direct Costs and Expenses                 1,957 1,828 228
UNITED STATES | Insurance and Loss Reserves [Member]                      
Direct Costs and Expenses                 2,922 3,286 3,363
UNITED STATES | Fuel, Lubes and Supplies [Member]                      
Direct Costs and Expenses                 3,568 1,485 1,392
Africa [Member]                      
Operating Revenues                 51,508 33,946 37,562
Direct Costs and Expenses                 34,188 28,367 21,924
Direct Vessel Profit                 17,320 5,579 15,638
Administrative and general                
Depreciation and amortization                 10,453 9,280 6,720
Historical cost 184,361       192,600       184,361 192,600 136,428
Accumulated depreciation (55,206)       (57,228)       (55,206) (57,228) (60,794)
Net book value 129,155       135,372       129,155 135,372 75,634
Total Assets(1) 140,335 [2]       140,173 [3]       140,335 [2] 140,173 [3] 96,847 [4]
Africa [Member] | Leased-in Equipment [Member]                      
Operating expenses                 3,843 3,870 3,898
Africa [Member] | Time Charter [Member]                      
Operating Revenues                 43,847 32,866 36,706
Africa [Member] | Bareboat Charter [Member]                      
Operating Revenues                
Africa [Member] | Other Direct Costs and Expenses [Member]                      
Operating Revenues                 7,661 1,080 856
Direct Costs and Expenses                 4,313 3,319 2,519
Africa [Member] | Personnel [Member]                      
Direct Costs and Expenses                 16,538 13,419 12,628
Africa [Member] | Repairs and Maintenance [Member]                      
Direct Costs and Expenses                 6,330 5,957 2,628
Africa [Member] | Drydocking [Member]                      
Direct Costs and Expenses                 2,085 2,180 1,098
Africa [Member] | Insurance and Loss Reserves [Member]                      
Direct Costs and Expenses                 1,096 677 539
Africa [Member] | Fuel, Lubes and Supplies [Member]                      
Direct Costs and Expenses                 3,826 2,815 2,512
Middle East and Asia [Member]                      
Operating Revenues                 49,185 33,884 53,887
Direct Costs and Expenses                 38,718 37,299 35,117
Direct Vessel Profit                 10,467 (3,415) 18,770
Administrative and general                
Depreciation and amortization                 18,762 17,724 11,550
Historical cost 306,897       326,378       306,897 326,378 197,389
Accumulated depreciation (81,378)       (100,435)       (81,378) (100,435) (97,433)
Net book value 225,519       225,943       225,519 225,943 99,956
Total Assets(1) 260,002 [2]       234,471 [3]       260,002 [2] 234,471 [3] 140,166 [4]
Middle East and Asia [Member] | Leased-in Equipment [Member]                      
Operating expenses                 862 4,389
Middle East and Asia [Member] | Time Charter [Member]                      
Operating Revenues                 50,072 33,410 41,657
Middle East and Asia [Member] | Bareboat Charter [Member]                      
Operating Revenues                
Middle East and Asia [Member] | Other Direct Costs and Expenses [Member]                      
Operating Revenues                 (887) 474 12,230
Direct Costs and Expenses                 3,980 5,240 3,247
Middle East and Asia [Member] | Personnel [Member]                      
Direct Costs and Expenses                 16,806 16,883 18,381
Middle East and Asia [Member] | Repairs and Maintenance [Member]                      
Direct Costs and Expenses                 11,172 9,037 6,426
Middle East and Asia [Member] | Drydocking [Member]                      
Direct Costs and Expenses                 1,362 968 2,117
Middle East and Asia [Member] | Insurance and Loss Reserves [Member]                      
Direct Costs and Expenses                 1,371 1,444 731
Middle East and Asia [Member] | Fuel, Lubes and Supplies [Member]                      
Direct Costs and Expenses                 4,027 3,727 4,215
Brazil, Mexico, Central and South America [Member]                      
Operating Revenues                 23,532 8,165 10,209
Direct Costs and Expenses                 8,388 1,739 2,527
Direct Vessel Profit                 15,144 6,426 7,682
Administrative and general                
Depreciation and amortization                 7,908 3,608 4,083
Historical cost 124,177       72,484       124,177 72,484 57,744
Accumulated depreciation (57,002)       (37,281)       (57,002) (37,281) (34,455)
Net book value 67,175       35,203       67,175 35,203 23,289
Total Assets(1) 137,983 [2]       103,135 [3]       137,983 [2] 103,135 [3] 94,373 [4]
Brazil, Mexico, Central and South America [Member] | Leased-in Equipment [Member]                      
Operating expenses                 913
Brazil, Mexico, Central and South America [Member] | Time Charter [Member]                      
Operating Revenues                 17,343 2,977 196
Brazil, Mexico, Central and South America [Member] | Bareboat Charter [Member]                      
Operating Revenues                 4,635 4,636 8,833
Brazil, Mexico, Central and South America [Member] | Other Direct Costs and Expenses [Member]                      
Operating Revenues                 1,554 552 1,180
Direct Costs and Expenses                 1,130 117 114
Brazil, Mexico, Central and South America [Member] | Personnel [Member]                      
Direct Costs and Expenses                 4,399 809 2,117
Brazil, Mexico, Central and South America [Member] | Repairs and Maintenance [Member]                      
Direct Costs and Expenses                 1,011 274 232
Brazil, Mexico, Central and South America [Member] | Drydocking [Member]                      
Direct Costs and Expenses                 128
Brazil, Mexico, Central and South America [Member] | Insurance and Loss Reserves [Member]                      
Direct Costs and Expenses                 495 316 43
Brazil, Mexico, Central and South America [Member] | Fuel, Lubes and Supplies [Member]                      
Direct Costs and Expenses                 1,225 223 21
Europe [Member]                      
Operating Revenues                 75,820 75,492 81,122
Direct Costs and Expenses                 61,097 53,183 59,500
Direct Vessel Profit                 14,723 22,309 21,622
Administrative and general                
Depreciation and amortization                 11,896 10,107 8,664
Historical cost 194,963       177,899       194,963 177,899 162,972
Accumulated depreciation (142,949)       (134,580)       (142,949) (134,580) (114,862)
Net book value 52,014       43,319       52,014 43,319 48,110
Total Assets(1) $ 59,716 [2]       $ 50,704 [3]       59,716 [2] 50,704 [3] 84,783 [4]
Europe [Member] | Leased-in Equipment [Member]                      
Operating expenses                 212 64 402
Europe [Member] | Time Charter [Member]                      
Operating Revenues                 72,188 73,213 78,866
Europe [Member] | Bareboat Charter [Member]                      
Operating Revenues                
Europe [Member] | Other Direct Costs and Expenses [Member]                      
Operating Revenues                 3,632 2,279 2,256
Direct Costs and Expenses                 1,332 980 1,180
Europe [Member] | Personnel [Member]                      
Direct Costs and Expenses                 38,577 34,768 39,713
Europe [Member] | Repairs and Maintenance [Member]                      
Direct Costs and Expenses                 9,614 8,793 9,275
Europe [Member] | Drydocking [Member]                      
Direct Costs and Expenses                 6,055 4,059 4,378
Europe [Member] | Insurance and Loss Reserves [Member]                      
Direct Costs and Expenses                 1,190 801 1,006
Europe [Member] | Fuel, Lubes and Supplies [Member]                      
Direct Costs and Expenses                 $ 4,329 $ 3,782 $ 3,948
[1] Includes property and equipment acquired in business acquisitions at acquisition date fair value, and net of the impact of recognized impairment charges.
[2] Total assets exclude $153,151 thousand of corporate assets.
[3] Total assets exclude $169,346 thousand of corporate assets.
[4] Total assets exclude $153,151 thousand of corporate assets.